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I24 over I24 / SOUTHERN RAILWAY

Map

Coordinates:
+35.02563, -85.30322
35°01'32" N, 85°18'12" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I24 over I24 / SOUTHERN RAILWAY
Structure number:33I00240029
Location:1 M E OF I124 JCT
Purpose:Carries highway over railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:122.1 ft. [37.2 m]
Total length:299.9 ft. [91.4 m]
Roadway width between curbs:141.1 ft. [43.0 m]
Deck width edge-to-edge:144.0 ft. [43.9 m]
Vertical clearance below bridge:19.7 ft. [6.0 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1958
Year reconstructed:1990
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: September 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:105,930 [as of 2015]
Truck traffic:14% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:72.9
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$9,784,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2016FairSatisfactoryGoodGood10593072.9
September 2014FairSatisfactoryGoodGood10926073.9
October 2012FairSatisfactoryGoodGood11642074.9
October 2010FairSatisfactoryGoodGood10432074.9
October 2008FairFairSatisfactoryGood11217073.9
October 2006FairFairSatisfactoryGood11616077.0
November 2004FairFairSatisfactoryGood11551077.0
July 2002FairFairSatisfactoryGood11325077.0
September 2000FairFairSatisfactoryGood9870077.0
August 1998FairFairSatisfactoryGood10539077.0
February 1997FairSatisfactoryGoodGood10126078.0
October 1994GoodGoodGoodVery Good9390078.0
October 1992GoodGoodGoodVery Good6750078.0
March 1991PoorSeriousSatisfactorySatisfactory6750061.7

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.5,4005,400000
Deck
Reinforced Concrete Decksq. ft.43,20043,200000
Substructure
Reinforced Concrete Columneach1212000
Reinforced Concrete Abutmentlinear ft.292292000
Reinforced Concrete Pier Caplinear ft.292292000
Bearings
Fixed Bearingeach3636000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.600600000